英语词汇heavy maintenance怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
By the 19th century, the canal fell into disrepair thanks to neglected maintenance, a major flood, and heavy pollution.
到19世纪，由于疏于维护，大洪涝和污染严重，大运河的命运陷入塌毁的境地。
2
Helicopters are expensive and delicate machines requiring heavy maintenance, especially when flying in dusty conditions.
直升机是昂贵而易损的机器，需要精心保养，尤其是在尘土飞扬的条件下飞行时。
3
If you're not doing heavy up-front development or committing to years of maintenance on each feature, you can easily try out different things.
只要你没有进行大批量的前期开发，或是承诺在特性上维护多年，你就能随意尝试不同的东西。

单词	heavy maintenance
释义	heavy maintenance 美/ ?hevi ?me?nt?n?ns / 简明释义大修；重大维护网络释义短语 1 heavy maintenance 大修 2 highway heavy maintenance 公路大修 3 heavy-duty maintenance machinery 大型养路机械双语例句 1 By the 19th century, the canal fell into disrepair thanks to neglected maintenance, a major flood, and heavy pollution. 到19世纪，由于疏于维护，大洪涝和污染严重，大运河的命运陷入塌毁的境地。 2 Helicopters are expensive and delicate machines requiring heavy maintenance, especially when flying in dusty conditions. 直升机是昂贵而易损的机器，需要精心保养，尤其是在尘土飞扬的条件下飞行时。 3 If you're not doing heavy up-front development or committing to years of maintenance on each feature, you can easily try out different things. 只要你没有进行大批量的前期开发，或是承诺在特性上维护多年，你就能随意尝试不同的东西。
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